Difficult, Raikage-sama's speed is great and I believe he can get in close to Deva path before it could use the universal push. Animal path I see as a problem for A. Naraka, Pretta, Human, and Assura I don't see as much of a problem for A...The Naraka paths' only usefulness in this case is his ability to bring back fallen paths. A out matches strength and speed I believe. Pretta path absorbs chakra however in order for him to absorb A's lightning chakra he has to get close to A and A's speed and strength could take him down before he got the chance. Human path is useless with his only ability in a battle situation being taijutsu, Assura is a robot basically and again not much of a problem. Deva path and Animal path I see as his only problems but I can't really decide yet who I think would win.